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Thu, 13 Mar 2025 04:40:56 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGVPPVaqt3ccoP6Qi6iR+F3/+FepdazbfVoBgBB08wJlm086Lrkra8NnpQV4ECmwIxgzuhyRQ== X-Received: by 2002:a05:6a21:6e01:b0:1f5:7873:3053 with SMTP id adf61e73a8af0-1f5787332c4mr25422454637.29.1741866056162; Thu, 13 Mar 2025 04:40:56 -0700 (PDT) Received: from hu-krichai-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-af56ea964e3sm1063219a12.76.2025.03.13.04.40.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 04:40:55 -0700 (PDT) From: Krishna Chaitanya Chundru Date: Thu, 13 Mar 2025 17:10:09 +0530 Subject: [PATCH v2 02/10] PCI/bwctrl: Add support to scale bandwidth before & after link re-training Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250313-mhi_bw_up-v2-2-869ca32170bf@oss.qualcomm.com> References: <20250313-mhi_bw_up-v2-0-869ca32170bf@oss.qualcomm.com> In-Reply-To: <20250313-mhi_bw_up-v2-0-869ca32170bf@oss.qualcomm.com> To: Bjorn Helgaas , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Jingoo Han , Manivannan Sadhasivam , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Johannes Berg , Jeff Johnson Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, mhi@lists.linux.dev, linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, quic_pyarlaga@quicinc.com, quic_vbadigan@quicinc.com, quic_vpernami@quicinc.com, quic_mrana@quicinc.com, Krishna Chaitanya Chundru , Jeff Johnson X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1741866038; l=3703; i=krishna.chundru@oss.qualcomm.com; s=20230907; h=from:subject:message-id; bh=QF3t9Npqd6WDL13WAUYjPdc5+X7unsf6GqmoGDJ96Z4=; b=r9fy/TEQIugEusXyzLXabUGKObbPiDQA2y0cW3J/suds1DrMZVbsdRhS6C69uzJ4DGZnytm19 VjGnvA/1AohDqYs2XNcrykXd1/23Tf2WTarVjm71yVNjL4/h/JZY91N X-Developer-Key: i=krishna.chundru@oss.qualcomm.com; a=ed25519; pk=10CL2pdAKFyzyOHbfSWHCD0X0my7CXxj8gJScmn1FAg= X-Proofpoint-GUID: KxkmZS_CrwmZI8I-lbN5yKcf1NvlBjTV X-Authority-Analysis: v=2.4 cv=ZObXmW7b c=1 sm=1 tr=0 ts=67d2c449 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Vs1iUdzkB0EA:10 a=EUspDBNiAAAA:8 a=p-QNkzJndyCg75AdzNkA:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: KxkmZS_CrwmZI8I-lbN5yKcf1NvlBjTV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-13_05,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 mlxscore=0 suspectscore=0 adultscore=0 impostorscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503130092 If the driver wants to move to higher data rate/speed than the current data rate then the controller driver may need to change certain votes so that link may come up at requested data rate/speed like QCOM PCIe controllers need to change their RPMh (Resource Power Manager-hardened) state. Once link retraining is done controller drivers needs to adjust their votes based on the final data rate. Some controllers also may need to update their bandwidth voting like ICC bw votings etc. So, add pre_scale_bus_bw() & post_scale_bus_bw() op to call before & after the link re-train. There is no explicit locking mechanisms as these are called by a single client endpoint driver. In case of PCIe switch, if there is a request to change target speed for a downstream port then no need to call these function ops as these are outside the scope of the controller drivers. Signed-off-by: Krishna Chaitanya Chundru --- drivers/pci/pcie/bwctrl.c | 15 +++++++++++++++ include/linux/pci.h | 13 +++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c index 0a5e7efbce2c..b1d660359553 100644 --- a/drivers/pci/pcie/bwctrl.c +++ b/drivers/pci/pcie/bwctrl.c @@ -161,6 +161,8 @@ static int pcie_bwctrl_change_speed(struct pci_dev *port, u16 target_speed, bool int pcie_set_target_speed(struct pci_dev *port, enum pci_bus_speed speed_req, bool use_lt) { + struct pci_host_bridge *host = pci_find_host_bridge(port->bus); + bool is_rootport = pci_is_root_bus(port->bus); struct pci_bus *bus = port->subordinate; u16 target_speed; int ret; @@ -173,6 +175,16 @@ int pcie_set_target_speed(struct pci_dev *port, enum pci_bus_speed speed_req, target_speed = pcie_bwctrl_select_speed(port, speed_req); + /* + * The controller driver may need to be scaled for targeted speed + * otherwise link might not come up at requested speed. + */ + if (is_rootport && host->ops->pre_scale_bus_bw) { + ret = host->ops->pre_scale_bus_bw(host->bus, target_speed); + if (ret) + return ret; + } + scoped_guard(rwsem_read, &pcie_bwctrl_setspeed_rwsem) { struct pcie_bwctrl_data *data = port->link_bwctrl; @@ -197,6 +209,9 @@ int pcie_set_target_speed(struct pci_dev *port, enum pci_bus_speed speed_req, !list_empty(&bus->devices)) ret = -EAGAIN; + if (is_rootport && host->ops->post_scale_bus_bw) + host->ops->post_scale_bus_bw(host->bus, pci_bus_speed2lnkctl2(bus->cur_bus_speed)); + return ret; } diff --git a/include/linux/pci.h b/include/linux/pci.h index 47b31ad724fa..9ae199c1e698 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -804,6 +804,19 @@ struct pci_ops { void __iomem *(*map_bus)(struct pci_bus *bus, unsigned int devfn, int where); int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val); int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val); + /* + * Callback to the drivers to update ICC bw votes, clock frequencies etc for + * the link re-train to come up in targeted speed. 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These are called by a + * single client endpoint driver, so there is no need for explicit + * locking mechanisms. + */ + void (*post_scale_bus_bw)(struct pci_bus *bus, int current_speed); }; /* From patchwork Thu Mar 13 11:40:11 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Chaitanya Chundru X-Patchwork-Id: 873393 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 685DD267B1F for ; Thu, 13 Mar 2025 11:41:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741866071; cv=none; b=lbZQ7FbH9L/VYfZPIvpB+Pkx2go+vT7Bpnml37Ff0ZCCnHT7jaT1dXK3/70q+sqh5hT3k+SqNRYMbGJmsge7VhUuIt5YnDzLXs+rETG02UZ6Lp5L2J3kPa+1gc8CwBVvQoM3ib4l+FI5xiXTHhMXdnk4cO/qT50OJX5J5knH5l4= ARC-Message-Signature: i=1; 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Signed-off-by: Krishna Chaitanya Chundru --- drivers/pci/controller/dwc/pcie-qcom.c | 61 +++++++++++++++++++--------------- 1 file changed, 35 insertions(+), 26 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index e4d3366ead1f..b66c413f1e2b 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1294,6 +1294,40 @@ static void qcom_pcie_host_post_init(struct dw_pcie_rp *pp) pcie->cfg->ops->host_post_init(pcie); } +static int qcom_pcie_set_icc_opp(struct qcom_pcie *pcie, int speed, int width) +{ + struct dw_pcie *pci = pcie->pci; + unsigned long freq_kbps; + struct dev_pm_opp *opp; + int ret = 0, freq_mbps; + + if (pcie->icc_mem) { + ret = icc_set_bw(pcie->icc_mem, 0, + width * QCOM_PCIE_LINK_SPEED_TO_BW(speed)); + if (ret) { + dev_err(pci->dev, "Failed to set bandwidth for PCIe-MEM interconnect path: %d\n", + ret); + } + } else if (pcie->use_pm_opp) { + freq_mbps = pcie_dev_speed_mbps(pcie_link_speed[speed]); + if (freq_mbps < 0) + return -EINVAL; + + freq_kbps = freq_mbps * KILO; + opp = dev_pm_opp_find_freq_exact(pci->dev, freq_kbps * width, + true); + if (!IS_ERR(opp)) { + ret = dev_pm_opp_set_opp(pci->dev, opp); + if (ret) + dev_err(pci->dev, "Failed to set OPP for freq (%lu): %d\n", + freq_kbps * width, ret); + dev_pm_opp_put(opp); + } + } + + return ret; +} + static const struct dw_pcie_host_ops qcom_pcie_dw_ops = { .init = qcom_pcie_host_init, .deinit = qcom_pcie_host_deinit, @@ -1478,9 +1512,6 @@ static void qcom_pcie_icc_opp_update(struct qcom_pcie *pcie) { u32 offset, status, width, speed; struct dw_pcie *pci = pcie->pci; - unsigned long freq_kbps; - struct dev_pm_opp *opp; - int ret, freq_mbps; offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP); status = readw(pci->dbi_base + offset + PCI_EXP_LNKSTA); @@ -1492,29 +1523,7 @@ static void qcom_pcie_icc_opp_update(struct qcom_pcie *pcie) speed = FIELD_GET(PCI_EXP_LNKSTA_CLS, status); width = FIELD_GET(PCI_EXP_LNKSTA_NLW, status); - if (pcie->icc_mem) { - ret = icc_set_bw(pcie->icc_mem, 0, - width * QCOM_PCIE_LINK_SPEED_TO_BW(speed)); - if (ret) { - dev_err(pci->dev, "Failed to set bandwidth for PCIe-MEM interconnect path: %d\n", - ret); - } - } else if (pcie->use_pm_opp) { - freq_mbps = pcie_dev_speed_mbps(pcie_link_speed[speed]); - if (freq_mbps < 0) - return; - - freq_kbps = freq_mbps * KILO; - opp = dev_pm_opp_find_freq_exact(pci->dev, freq_kbps * width, - true); - if (!IS_ERR(opp)) { - ret = dev_pm_opp_set_opp(pci->dev, opp); - if (ret) - dev_err(pci->dev, "Failed to set OPP for freq (%lu): %d\n", - freq_kbps * width, ret); - dev_pm_opp_put(opp); - } - } + qcom_pcie_set_icc_opp(pcie, speed, width); } static int qcom_pcie_link_transition_count(struct seq_file *s, void *data) From patchwork Thu Mar 13 11:40:13 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Chaitanya Chundru X-Patchwork-Id: 873392 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 567E5267F5D for ; 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a=ed25519-sha256; t=1741866038; l=2486; i=krishna.chundru@oss.qualcomm.com; s=20230907; h=from:subject:message-id; bh=nMXDxyNhjI58pEdLUQqctmcAdSRLINO8la+ypV3eSj8=; b=IQFrsWjbiSFkhhFBnz/9ECFoXIf7GbLmM1L6/nMA8GY8bq3hdf6o2GCxsl0IkRddYfEnufKMF 7l0la06C7++BPXkI71ClW+XSU+tDbkr2gtqK0EIF/oHROpwpoeEt/nS X-Developer-Key: i=krishna.chundru@oss.qualcomm.com; a=ed25519; pk=10CL2pdAKFyzyOHbfSWHCD0X0my7CXxj8gJScmn1FAg= X-Proofpoint-GUID: EYudj1HqZMOyvVYM06VvSDq6r6g_smQ6 X-Authority-Analysis: v=2.4 cv=ZObXmW7b c=1 sm=1 tr=0 ts=67d2c460 cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Vs1iUdzkB0EA:10 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=8tVK0NU1EB3xojDYR3gA:9 a=QEXdDO2ut3YA:10 a=iS9zxrgQBfv6-_F4QbHw:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: EYudj1HqZMOyvVYM06VvSDq6r6g_smQ6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1093,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-13_05,2025-03-11_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 mlxscore=0 suspectscore=0 adultscore=0 impostorscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503130092 From: Vivek Pernamitta As per MHI spec sec 6.6, MHI has capability registers which are located after the ERDB array. The location of this group of registers is indicated by the MISCOFF register. Each capability has a capability ID to determine which functionality is supported and each capability will point to the next capability supported. Add a basic function to read those capabilities offsets. Signed-off-by: Vivek Pernamitta Signed-off-by: Krishna Chaitanya Chundru --- drivers/bus/mhi/common.h | 4 ++++ drivers/bus/mhi/host/init.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/drivers/bus/mhi/common.h b/drivers/bus/mhi/common.h index dda340aaed95..eedac801b800 100644 --- a/drivers/bus/mhi/common.h +++ b/drivers/bus/mhi/common.h @@ -16,6 +16,7 @@ #define MHICFG 0x10 #define CHDBOFF 0x18 #define ERDBOFF 0x20 +#define MISCOFF 0x24 #define BHIOFF 0x28 #define BHIEOFF 0x2c #define DEBUGOFF 0x30 @@ -113,6 +114,9 @@ #define MHISTATUS_MHISTATE_MASK GENMASK(15, 8) #define MHISTATUS_SYSERR_MASK BIT(2) #define MHISTATUS_READY_MASK BIT(0) +#define MISC_CAP_MASK GENMASK(31, 0) +#define CAP_CAPID_MASK GENMASK(31, 24) +#define CAP_NEXT_CAP_MASK GENMASK(23, 12) /* Command Ring Element macros */ /* No operation command */ diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c index a9b1f8beee7b..0b14b665ed15 100644 --- a/drivers/bus/mhi/host/init.c +++ b/drivers/bus/mhi/host/init.c @@ -467,6 +467,35 @@ int mhi_init_dev_ctxt(struct mhi_controller *mhi_cntrl) return ret; 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Signed-off-by: Krishna Chaitanya Chundru --- drivers/pci/pcie/bwctrl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c index b1d660359553..0f4f68c170cd 100644 --- a/drivers/pci/pcie/bwctrl.c +++ b/drivers/pci/pcie/bwctrl.c @@ -214,6 +214,7 @@ int pcie_set_target_speed(struct pci_dev *port, enum pci_bus_speed speed_req, return ret; } +EXPORT_SYMBOL_GPL(pcie_set_target_speed); static void pcie_bwnotif_enable(struct pcie_device *srv) { From patchwork Thu Mar 13 11:40:17 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Chaitanya Chundru X-Patchwork-Id: 873390 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3BF742661B8 for ; Thu, 13 Mar 2025 11:41:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Thu, 13 Mar 2025 04:41:43 -0700 (PDT) X-Google-Smtp-Source: AGHT+IH4KS059o50FJ3zNErZOLROVvjQZDc2HgJ5OaS3d/rE1XNS/o6bFbi0r6LR6J9lgfSFiRTe6g== X-Received: by 2002:a05:6a21:a4a:b0:1f5:769a:a4c0 with SMTP id adf61e73a8af0-1f58cb40d0fmr19674070637.22.1741866102667; Thu, 13 Mar 2025 04:41:42 -0700 (PDT) Received: from hu-krichai-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-af56ea964e3sm1063219a12.76.2025.03.13.04.41.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 04:41:42 -0700 (PDT) From: Krishna Chaitanya Chundru Date: Thu, 13 Mar 2025 17:10:17 +0530 Subject: [PATCH v2 10/10] wifi: ath11k: add support for MHI bandwidth scaling Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250313-mhi_bw_up-v2-10-869ca32170bf@oss.qualcomm.com> References: <20250313-mhi_bw_up-v2-0-869ca32170bf@oss.qualcomm.com> In-Reply-To: <20250313-mhi_bw_up-v2-0-869ca32170bf@oss.qualcomm.com> To: Bjorn Helgaas , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Jingoo Han , Manivannan Sadhasivam , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84?= =?utf-8?q?ski?= , Rob Herring , Johannes Berg , Jeff Johnson Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, mhi@lists.linux.dev, linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, quic_pyarlaga@quicinc.com, quic_vbadigan@quicinc.com, quic_vpernami@quicinc.com, quic_mrana@quicinc.com, Krishna Chaitanya Chundru , Jeff Johnson , Miaoqing Pan X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; 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This feature is only enabled for QCA6390. Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04546-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1 Signed-off-by: Miaoqing Pan --- drivers/net/wireless/ath/ath11k/mhi.c | 41 +++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 6e45f464a429..74769c0993ae 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -20,6 +20,7 @@ #define MHI_TIMEOUT_DEFAULT_MS 20000 #define RDDM_DUMP_SIZE 0x420000 #define MHI_CB_INVALID 0xff +#define MHI_BW_SCALE_CHAN_DB 126 static const struct mhi_channel_config ath11k_mhi_channels_qca6390[] = { { @@ -73,6 +74,17 @@ static struct mhi_event_config ath11k_mhi_events_qca6390[] = { .client_managed = false, .offload_channel = false, }, + { + .num_elements = 8, + .irq_moderation_ms = 0, + .irq = 1, + .mode = MHI_DB_BRST_DISABLE, + .data_type = MHI_ER_BW_SCALE, + .priority = 2, + .hardware_event = false, + .client_managed = false, + .offload_channel = false, + }, }; static const struct mhi_controller_config ath11k_mhi_config_qca6390 = { @@ -313,6 +325,33 @@ static void ath11k_mhi_op_write_reg(struct mhi_controller *mhi_cntrl, writel(val, addr); } +static int ath11k_mhi_op_get_misc_doorbell(struct mhi_controller *mhi_cntrl, + enum mhi_er_data_type type) +{ + if (type == MHI_ER_BW_SCALE) + return MHI_BW_SCALE_CHAN_DB; + + return -EINVAL; +} + +static int ath11k_mhi_op_bw_scale(struct mhi_controller *mhi_cntrl, + struct mhi_link_info *link_info) +{ + enum pci_bus_speed speed = pci_lnkctl2_bus_speed(link_info->target_link_speed); + struct ath11k_base *ab = dev_get_drvdata(mhi_cntrl->cntrl_dev); + struct pci_dev *pci_dev = to_pci_dev(ab->dev); + struct pci_dev *pdev; + + if (!pci_dev) + return -EINVAL; + + pdev = pci_upstream_bridge(pci_dev); + if (!pdev) + return -ENODEV; + + return pcie_set_target_speed(pdev, speed, true); +} + static int ath11k_mhi_read_addr_from_dt(struct mhi_controller *mhi_ctrl) { struct device_node *np; @@ -389,6 +428,8 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci) mhi_ctrl->status_cb = ath11k_mhi_op_status_cb; mhi_ctrl->read_reg = ath11k_mhi_op_read_reg; mhi_ctrl->write_reg = ath11k_mhi_op_write_reg; + mhi_ctrl->bw_scale = ath11k_mhi_op_bw_scale; + mhi_ctrl->get_misc_doorbell = ath11k_mhi_op_get_misc_doorbell; switch (ab->hw_rev) { case ATH11K_HW_QCN9074_HW10: